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Without using a calculator, fill in the blanks with two consecutive integers to complete the in equality

Without using a calculator, fill in the blanks with two consecutive integers to complete-example-1
User Qiuyuntao
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2 Answers

5 votes

Answer:


4 < √(17) < 5

Explanation:

Mumble. The square root is something called "monotonic", which means that
a > b \Leftrightarrow \sqrt a > \sqrt b

A neat trick to solve this will be: go back from 17 till you find a perfect square, then add 1 to it:

In our case it's easy to do it, since the number before 17 is a perfect square already (
16=4^2), so we can pick it as the lower bound, and then add 1 to the base to find the next one (
4+1= 5)

User GuiFalourd
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3.7k points
13 votes

Answer:


√(16) < √(17) < √(18)

Explanation:

User Mark Beaton
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3.8k points